[gstreamer-bugs] [Bug 566936] New: [playbin2] Stopping a playbin2 breaks subtitles

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-base | Ver: HEAD CVS
           Summary: [playbin2] Stopping a playbin2 breaks subtitles
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: guillaume at fluendo.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Using a playbin2 with uri and suburi set, going from STATE_PLAYING to
STATE_NULL and then back to STATE_PLAYING breaks the display of subtitles.

Example python code that triggers the bug:
------8<----------
#video and subs contain respectively a video uri and a subtitle file uri
pipeline = gst.element_factory_make('playbin2')
pipeline.set_property('uri', video)
pipeline.set_property('suburi', subs)
pipeline.set_state(gst.STATE_PLAYING)
time.sleep(5)
pipeline.set_state(gst.STATE_NULL)
pipeline.get_state(0)
pipeline.set_state(gst.STATE_PLAYING)
time.sleep(5)
pipeline.set_state(gst.STATE_NULL)
------8<----------
Expected result:
 The subtitles are shown in both iterations
Currentt result:
 The subtitles are not shown the second time the video is played

Setting again the suburi does not change anything.
The subtitles are displayed if playbin is used instead of playbin2.


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